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K-State Research and Extensions
Crystal Shapes
Of quartz I love geology! The chapter offers five activities at three different levels. It features hands-on activities that cover crystal shapes, cleavage and fracture, hardness scale, specific gravity, and mineral...
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University of Bristol, Uk: Minerals Under the Microscope
In this geology course, students learn about the use of the polarizing microscope, the primary tool for examining the structure of mineral samples such as cleavage, density, fracture, color, and the like.
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Rockhounding Arkansas: Basic Mineral Identification
Want to learn about rock collecting? This page introduces you to the basics and language of rocks and -inerals. Learn what the difference is between a rock and a mineral.